CN115028361B - Glass fiber cloth and preparation method thereof - Google Patents
Glass fiber cloth and preparation method thereof Download PDFInfo
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- CN115028361B CN115028361B CN202210831526.9A CN202210831526A CN115028361B CN 115028361 B CN115028361 B CN 115028361B CN 202210831526 A CN202210831526 A CN 202210831526A CN 115028361 B CN115028361 B CN 115028361B
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C1/00—Ingredients generally applicable to manufacture of glasses, glazes, or vitreous enamels
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/01—Manufacture of glass fibres or filaments
- C03B37/02—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
- C03B37/022—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor from molten glass in which the resultant product consists of different sorts of glass or is characterised by shape, e.g. hollow fibres, undulated fibres, fibres presenting a rough surface
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
- C03C25/10—Coating
- C03C25/24—Coatings containing organic materials
- C03C25/26—Macromolecular compounds or prepolymers
- C03C25/32—Macromolecular compounds or prepolymers obtained otherwise than by reactions involving only carbon-to-carbon unsaturated bonds
- C03C25/323—Polyesters, e.g. alkyd resins
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
Abstract
The application provides glass fiber cloth and a preparation method thereof, and relates to the technical field of glass fiber cloth preparation. The preparation method comprises the following steps: (1) Crushing and melting glass raw materials to obtain glass liquid; (2) Drawing the glass liquid in the step (1) at 1350-1400 ℃ and coating an impregnating compound to obtain glass precursor; (3) Twisting the glass precursor obtained in the step (2) to obtain yarns, and casting the yarns into warps and wefts through a loom to obtain glass fiber cloth; the application controls the specific raw material components and the proportion among the components of the impregnating compound, obviously improves the adhesive force of the impregnating compound, and the glass fiber cloth prepared by using the glass fiber treated by the impregnating compound has excellent corrosion resistance and mechanical property.
Description
Technical Field
The application relates to the technical field of glass fiber cloth preparation, in particular to glass fiber cloth and a preparation method thereof.
Background
The glass fiber is an inorganic nonmetallic material with excellent performance, and comprises the components of silicon dioxide, aluminum oxide, calcium oxide, boron oxide, magnesium oxide, sodium oxide and the like, and is prepared by taking glass balls or waste glass as raw materials through the processes of high-temperature melting, wire drawing, winding, weaving and the like, and finally various products are formed; glass fiber is various, and has the advantages of good insulativity, strong heat resistance, good corrosion resistance and high mechanical strength, but has the disadvantages of brittleness and poor wear resistance, and is commonly used as reinforcing material in composite materials, electric insulating material, heat insulating material, circuit substrate and other fields.
The glass fiber cloth is used as a novel material in the production industry in the modern day, and has the advantages of good insulativity, strong heat resistance, good corrosion resistance, high mechanical strength and the like, so that the glass fiber cloth is widely applied to various fields of ship bodies, storage tanks, cooling towers, ships, vehicles, tanks, buildings and the like. However, the glass fiber product is as same as glass, is brittle and is easy to break; moreover, the wear resistance is poor, and the damage to the glass fiber cloth is easy to cause when the glass fiber cloth is used for a long time, and the sharp article scratches on the surface of the glass fiber cloth, so that irreparable wear is caused, and different materials are needed to be added for improvement.
As disclosed in chinese patent application 201610768497.0, a highly abrasion-resistant glass fiber cloth and a method for preparing the same, the method comprising the steps of: (1) weaving glass fiber monofilaments to obtain basic glass fiber cloth; (2) arranging the base glass fiber in the slurry and soaking for 2-3 hours; (3) Extruding redundant slurry on the basic glass fiber cloth, and removing bubbles to obtain preformed glass fiber cloth; (4) And (3) bundling glass fiber monofilaments in parallel to obtain filaments, cutting the filaments into lengths of 60-70mm, uniformly paving the filaments on preformed glass fiber cloth at random, coating an adhesive, heating and curing to obtain a slurry in the step (2) for uniformly coating the two sides of the substrate (5), and then carrying out ultraviolet curing to obtain the glass fiber reinforced plastic. The high-wear-resistance glass fiber cloth has higher hardness and reflects good wear resistance. The bending degree and the impact strength are ideal, and the mechanical strength is better; the water repellency score was high, indicating good water repellency.
As further disclosed in chinese patent application 201210135694.0, the high-strength high-impact glass fiber cloth is formed by interweaving warp yarns and weft yarns, wherein the warp yarns and the weft yarns are glass fibers coated with a sizing agent on the surfaces, the sizing agent is formed by mixing a coupling agent, a lubricant, an epoxy film-forming agent, a polyester film-forming agent, a polyurethane film-forming agent and water according to a weight ratio of 0.4:0.4:4.5:1.8:0.4:92.5, and the solid content in the sizing agent is 5.0% -7.0%; the water content of the glass fiber cloth is less than or equal to 0.20 percent, and the combustible content is 0.6 to 1.0 percent; the warp strength of the glass fiber cloth is 1600N/25mm-3000N/25mm, and the weft strength is 1500N/25mm-1800N/25mm. The glass fiber cloth has higher strength and good shock resistance, and can be combined with different resin systems
However, the existing glass fiber cloth still cannot well meet the requirements on corrosion resistance and the adhesion rate of the precursor, so that development of the glass fiber cloth with excellent corrosion resistance and excellent adhesion rate of the precursor is required.
Disclosure of Invention
Based on the defects existing in the prior art, the application provides the glass fiber cloth and the preparation method thereof, and the prepared glass fiber cloth has better corrosion resistance and precursor attachment rate by reasonably controlling the specific components and the content proportion of the impregnating compound, so that the application field of the glass fiber cloth can be better widened.
In order to achieve the above purpose, the present application adopts the following technical scheme:
in one aspect, the application provides a method for preparing glass fiber cloth, comprising the following steps:
(1) Crushing and melting glass raw materials to obtain glass liquid;
(2) Drawing the glass liquid in the step (1) at 1350-1400 ℃ and coating an impregnating compound to obtain glass precursor;
(3) Twisting the glass precursor obtained in the step (2) to obtain yarns, and casting the yarns into warps and wefts through a loom to obtain glass fiber cloth;
the raw materials in the step (1) comprise 22.58% of kaolin, 20.25% of calcite, 3.56% of fluorite, 15.25% of loam, 0.22% of mirabilite, 0.42% of sodium carbonate and 37.42% of quartz sand in percentage by weight.
The crushed grain size in the step (1) is 300-400 meshes, and the melting temperature is 1600-1700 ℃.
The impregnating compound in the step (3) comprises the following components in parts by weight: 8-12 parts of epoxy resin emulsion, 5-10 parts of phenolic resin emulsion, 10-15 parts of aqueous polyurethane resin, 0.5-1.5 parts of coupling agent, 0.1-0.5 part of coconut fatty acid amide, 5-10 parts of surfactant, 0.2-0.5 part of antistatic agent, 1-5 parts of pH regulator and the balance of water.
Preferably, the impregnating compound comprises the following components in parts by weight: 10-12 parts of epoxy resin emulsion, 8-10 parts of phenolic resin emulsion, 12-15 parts of aqueous polyurethane resin, 0.8-1.2 parts of coupling agent, 0.2-0.4 part of coconut fatty acid amide, 6-8 parts of surfactant, 0.3-0.4 part of antistatic agent, 2-3 parts of pH regulator and the balance of water.
Still preferably, the impregnating compound comprises the following components in parts by weight: 10 parts of epoxy resin emulsion, 10 parts of phenolic resin emulsion, 15 parts of aqueous polyurethane resin, 0.9 part of coupling agent, 0.4 part of coconut fatty acid amide, 8 parts of surfactant, 0.4 part of antistatic agent, 2 parts of pH regulator and the balance of water.
Wherein the coupling agent is a mixture of a silane coupling agent and a titanate coupling agent; the silane coupling agent is one or more selected from 3-glycidol ether oxygen propyl trimethoxy silane, gamma- (2, 3-epoxypropoxy) propyl triethoxy silane and vinyl methyl dimethoxy silane;
one or more of monoalkoxy unsaturated fatty acid titanate and isopropyl tri (dioctyl acyloxy phosphate) titanate serving as a titanate coupling agent;
preferably, the coupling agent is a mixture of 3-glycidol ether oxypropyl trimethoxy silane, vinyl methyl dimethoxy silane and isopropyl tri (dioctyl acyloxy phosphate) titanate, and the mass ratio of the three is 1-2:1-2:0.5; preferably 2:2:0.5.
The coupling agent can change the interface energy between inorganic matter and high molecular polymer and form chemical or physical molecular bridge between the interfaces to combine inorganic matter glass fiber and organic matter high molecular polymer firmly. In the implementation process, the application surprisingly discovers that the mixture of 3-glycidol ether oxygen propyl trimethoxy silane, vinyl methyl dimethoxy silane and isopropyl tri (dioctyl phosphate acyloxy) titanate is used as a coupling agent, and the mass ratio of the 3 to the vinyl methyl dimethoxy silane to the isopropyl tri (dioctyl phosphate acyloxy) titanate is controlled to be 1-2:1-2:0.5, so that the interface energy between inorganic matters and high polymer can be better changed, thereby firmly combining glass fibers and organic matter high polymer, and further improving the precursor adhesion rate of the sizing agent.
The surfactant is selected from polyethylene glycol-2000.
The antistatic agent is ammonium chloride.
The pH regulator is citric acid.
In some preferred embodiments, the mass ratio of the epoxy resin emulsion, the phenolic resin emulsion and the aqueous polyurethane resin is 1-1.2:1:1-1.5; preferably, the mass ratio of the epoxy resin emulsion to the phenolic resin emulsion to the aqueous polyurethane resin is 1:1:1.5.
In addition, as the wettability between the resin matrix and the reinforcing material is better, the interface bonding strength is higher, and the mechanical property of the composite material is better, the application adopts the epoxy resin emulsion, the phenolic resin emulsion and the water-based polyurethane resin with the mass ratio of 1-1.2:1:1-1.5 as the resin matrix, and adopts the mixture of 3-glycidoxypropyl trimethoxysilane, vinyl methyl dimethoxy silane and isopropyl tri (dioctyl phosphate acyloxy) titanate with the mass ratio of 1-2:1-2:0.5 as the coupling agent, so that the mechanical property of the glass fiber cloth can be better improved.
The addition amount of the impregnating compound is 0.10-0.18% of the weight of the glass fiber.
On the other hand, the application also provides the glass fiber cloth prepared by the preparation method.
Compared with the prior art, the application has the beneficial effects that:
(1) According to the application, the glass fiber impregnating compound is obtained by optimizing the formula and the proportion of the components, and the glass fiber is treated by adopting the impregnating compound, so that the yield of the glass fiber can be improved, the strength of the glass fiber is improved, and the obtained glass fiber cloth has more excellent mechanical properties;
(2) According to the application, a proper resin matrix is selected and the proportion is controlled, namely, epoxy resin emulsion, phenolic resin emulsion and aqueous polyurethane resin with the mass ratio of 1-1.2:1:1-1.5 are adopted as the resin matrix, and 3-glycidol ether oxypropyl trimethoxy silane, vinyl methyl dimethoxy silane, isopropyl tri (dioctyl phosphate acyloxy) titanate and lubricant coconut oil fatty acid amide are matched for mixing, so that the adhesive force of the sizing agent is improved, and the prepared glass fiber cloth has better corrosion resistance.
Detailed Description
For a better understanding of the present application, reference will now be made to the following description of specific examples, which are included in the terminology used to describe specific embodiments of the application and are not intended to limit the scope of the application.
The raw material sources are as follows:
epoxy resin emulsion was purchased from marten Luo Senjie chemical technology limited, product number LS255; phenolic resin emulsion is purchased from Centipeda-free Hao chemical industry Co., ltd., model 2124; the aqueous polyurethane resin is purchased from Guangzhou Springs chemical engineering Co., ltd, and the model is PU-501; 3-glycidoxypropyl trimethoxysilane was purchased from Nanjing Netherlands New Material technology Co., ltd., model SCA-E87M; vinyl methyl dimethoxy silane is purchased from Nanjing Netherlands New Material technology Co., ltd., model SCA-V71T; isopropyl tri (dioctyl acyloxy phosphate) titanate is available from Nanjing Netherlands New Material technology Co., ltd., model TCA-K38S; polyethylene glycol-2000 was purchased from the sea-safe petrochemical plant, jiangsu province, model PEG 2000.
The other raw materials are all common commercial products, so that the sources of the raw materials are not required to be limited.
The glass precursor filaments obtained in the following examples had a diameter of 8 to 10 μm and a twist of 20 twists per meter; the twisting direction is S twisting, the warp density is 14-16 roots/cm, and the weft density is 10-13 roots/cm.
Example 1 a method for preparing a fiberglass cloth comprising the steps of:
(1) Mixing glass raw materials, by weight, 22.58% of kaolin, 20.25% of calcite, 3.56% of fluorite, 15.25% of loam, 0.22% of mirabilite, 0.42% of sodium carbonate and 37.42% of quartz sand, crushing, sieving with a 400-mesh sieve, and putting into a kiln for melting at 1700 ℃ to obtain glass liquid;
(2) Drawing the glass liquid in the step (1) at 1350 ℃ and coating an impregnating compound, wherein the addition amount of the impregnating compound is 0.10% of the weight of the glass fiber, so as to obtain a glass precursor;
(3) Twisting the glass precursor obtained in the step (2) to obtain yarns, and casting the yarns into warps and wefts through a loom to obtain glass fiber cloth;
the impregnating compound comprises the following components in parts by weight: 8 parts of epoxy resin emulsion, 5 parts of phenolic resin emulsion, 10 parts of aqueous polyurethane resin, 0.5 part of gamma- (2, 3-epoxypropoxy) propyl triethoxysilane, 0.1 part of coconut fatty acid amide, 2000 parts of polyethylene glycol, 0.2 part of ammonium chloride, 1 part of citric acid and 70.2 parts of water.
Example 2 a method of making a fiberglass cloth comprising the steps of:
(1) Mixing glass raw materials, by weight, 22.58% of kaolin, 20.25% of calcite, 3.56% of fluorite, 15.25% of loam, 0.22% of mirabilite, 0.42% of sodium carbonate and 37.42% of quartz sand, crushing, sieving with a 400-mesh sieve, and putting into a kiln for melting at 1700 ℃ to obtain glass liquid;
(2) Drawing the glass liquid in the step (1) at 1350 ℃ and coating an impregnating compound, wherein the addition amount of the impregnating compound is 0.10% of the weight of the glass fiber, so as to obtain a glass precursor;
(3) Twisting the glass precursor obtained in the step (2) to obtain yarns, and casting the yarns into warps and wefts through a loom to obtain glass fiber cloth;
the impregnating compound comprises the following components in parts by weight: 10 parts of epoxy resin emulsion, 8 parts of phenolic resin emulsion, 15 parts of aqueous polyurethane resin, 1.5 parts of isopropyl tri (dioctyl phosphate acyloxy) titanate, 0.5 part of coconut fatty acid amide, 2000 10 parts of polyethylene glycol, 0.5 part of ammonium chloride, 5 parts of citric acid and 45.5 parts of water.
Example 3 a method of making a fiberglass cloth comprising the steps of:
(1) Mixing glass raw materials, by weight, 22.58% of kaolin, 20.25% of calcite, 3.56% of fluorite, 15.25% of loam, 0.22% of mirabilite, 0.42% of sodium carbonate and 37.42% of quartz sand, crushing, sieving with a 400-mesh sieve, and putting into a kiln for melting at 1700 ℃ to obtain glass liquid;
(2) Drawing the glass liquid in the step (1) at 1350 ℃ and coating an impregnating compound, wherein the addition amount of the impregnating compound is 0.10% of the weight of the glass fiber, so as to obtain a glass precursor;
(3) Twisting the glass precursor obtained in the step (2) to obtain yarns, and casting the yarns into warps and wefts through a loom to obtain glass fiber cloth;
the impregnating compound comprises the following components in parts by weight: 12 parts of epoxy resin emulsion, 10 parts of phenolic resin emulsion, 12 parts of aqueous polyurethane resin, 0.48 part of 3-glycidol ether oxypropyl trimethoxy silane, 0.48 part of vinyl methyl dimethoxy silane, 0.24 part of isopropyl tri (dioctyl phosphate acyloxy) titanate, 0.2 part of coconut oil fatty acid amide, 2000 parts of polyethylene glycol, 0.3 part of ammonium chloride, 2 parts of citric acid and 55.4 parts of water.
Example 4 a method of making a fiberglass cloth comprising the steps of:
(1) Mixing glass raw materials, by weight, 22.58% of kaolin, 20.25% of calcite, 3.56% of fluorite, 15.25% of loam, 0.22% of mirabilite, 0.42% of sodium carbonate and 37.42% of quartz sand, crushing, sieving with a 400-mesh sieve, and putting into a kiln for melting at 1700 ℃ to obtain glass liquid;
(2) Drawing the glass liquid in the step (1) at 1350 ℃ and coating an impregnating compound, wherein the addition amount of the impregnating compound is 0.10% of the weight of the glass fiber, so as to obtain a glass precursor;
(3) Twisting the glass precursor obtained in the step (2) to obtain yarns, and casting the yarns into warps and wefts through a loom to obtain glass fiber cloth;
the impregnating compound comprises the following components in parts by weight: 10 parts of epoxy resin emulsion, 10 parts of phenolic resin emulsion, 15 parts of aqueous polyurethane resin, 0.4 part of 3-glycidol ether oxypropyl trimethoxy silane, 0.4 part of vinyl methyl dimethoxy silane, 0.1 part of isopropyl tri (dioctyl acyloxy phosphate) titanate, 0.4 part of coconut fatty acid amide, 2000 parts of polyethylene glycol, 0.4 part of ammonium chloride, 2 parts of citric acid and 53.3 parts of water.
Comparative example 1
The difference from example 4 is that: 15 parts of epoxy resin emulsion, 6 parts of phenolic resin emulsion, 10 parts of aqueous polyurethane resin, 2 parts of 3-glycidol ether oxypropyl trimethoxy silane, 2 parts of vinyl methyl dimethoxy silane, 0.5 part of isopropyl tri (dioctyl acyloxy phosphate) titanate, 0.4 part of coconut oil fatty acid amide, 2000 parts of polyethylene glycol-2000, 0.2 part of ammonium chloride, 2 parts of citric acid and 53.9 parts of water.
Comparative example 2
The difference from example 4 is that: the mass ratio of 3-glycidoxypropyl trimethoxysilane, vinylmethyldimethoxysilane and isopropyl tri (dioctyl acyloxy) titanate was 1:1:1, and the total weight of (3-glycidoxypropyl trimethoxysilane, vinylmethyldimethoxysilane and isopropyl tri (dioctyl acyloxy) titanate was the same as in example 4.
Other sources, contents and preparation methods were the same as in example 4.
Comparative example 3
The difference from example 4 is that: the mass ratio of 3-glycidoxypropyl trimethoxysilane, vinylmethyldimethoxysilane and isopropyl tri (dioctyl acyloxy) titanate was 0.5:1:1, and the total weight of (3-glycidoxypropyl trimethoxysilane, vinylmethyldimethoxysilane and isopropyl tri (dioctyl acyloxy) titanate was the same as in example 4.
Other sources, contents and preparation methods were the same as in example 4.
Comparative example 4
The difference from example 4 is that: the mass ratio of the epoxy resin emulsion, the phenolic resin emulsion and the aqueous polyurethane resin was 1:1:3, (the total weight of the epoxy resin emulsion, the phenolic resin emulsion and the aqueous polyurethane resin was the same as in example 4).
Other sources, contents and preparation methods were the same as in example 4.
Comparative example 5
The difference from example 4 is that: the mass ratio of the epoxy resin emulsion, the phenolic resin emulsion and the aqueous polyurethane resin was 1:1:0.5, (the total weight of the epoxy resin emulsion, the phenolic resin emulsion and the aqueous polyurethane resin was the same as in example 4).
Other sources, contents and preparation methods were the same as in example 4.
Performance test:
the above examples 1 to 4 and comparative examples 1 to 5 were applied to the production of glass fiber cloth, and the performance of the glass strands and glass fiber cloth thus prepared was examined.
1. The attachment rate of the precursor:
the glass strands obtained in step (2) of examples 1 to 4 and comparative examples 1 to 5 were subjected to strand attachment rate detection.
Definition of combustible content: the ratio of the mass of combustible material in the dried glass fibers to the mass of the dried glass fibers, expressed as a percentage, is given under the specified conditions.
The detection method comprises the following steps: the dried sample was burned at a temperature of (625.+ -. 20) ℃ under standard temperature and temperature conditions to give a mass.
The calculation method comprises the following steps: combustible content= (w1+w2-w3)/w2×100%
Wherein: w1-represents the weight of the crucible; w2-weight of sample after drying; w3-weight of the crucible and sample after forced burning.
The results of the measurements are shown in Table 1 below.
TABLE 1
From the test data in table 1 above, it can be seen that the use of only one coupling agent component in examples 1-2 can significantly affect the fiber-glass precursor adhesion, the fiber-glass precursor adhesion is only 1.6% or 1.5%, while the use of the three coupling agents in examples 3-4 can significantly improve the fiber-glass precursor adhesion, especially the use of 3-glycidoxypropyl trimethoxysilane, vinylmethyldimethoxysilane and isopropyl tri (dioctyl-phosphate) titanate in the mass ratio of 2:2:0.5 as coupling agents and the use of epoxy resin emulsion, phenolic resin emulsion and aqueous polyurethane resin in the mass ratio of 1:1:1.5 as resin matrix can better combine the resin matrix with the reinforcing material, thereby improving the fiber-glass precursor adhesion and enabling the fiber-glass precursor adhesion to reach 2.5%; when the content of the resin matrix in comparative example 1 is not within the protection scope of the application, the adhesive force of the precursor of the glass fiber is affected to a certain extent, the ratio of the coupling agent in comparative examples 2-3 is not within the protection scope of the application, and the ratio of the epoxy resin emulsion, the phenolic resin emulsion and the aqueous polyurethane resin in comparative examples 4-5 is not within the protection scope of the application, so that the adhesive force of the precursor of the glass fiber is reduced.
2. Corrosion resistance:
soaking about 10g of glass fiber cloth in microetching solution for 1.5h at normal temperature (25 ℃), taking out the glass fiber cloth, drying, measuring the mass of the soaked glass fiber cloth again, subtracting the difference value obtained by the mass after soaking from the mass before soaking, and calculating the proportion of the difference value to the original mass to judge the corrosion resistance of the glass fiber; microetching liquid: adding 3mL of 30% hydrogen peroxide H into 100mL of pure water 2 O 2 And 3mL of 98% strength concentrated sulfuric acid to obtain microetching solution (H) 2 O 2 3％，H 2 SO 4 3%) and the calculation results are shown in table 2 below.
TABLE 2
From the test data in table 2 above, it can be seen that the use of only one coupling agent component in examples 1-2 can significantly affect the corrosion resistance of glass fibers, while the use of three coupling agents in examples 3-4 can significantly improve the corrosion resistance of glass fibers, especially in example 4, 3-glycidoxypropyl trimethoxysilane, vinylmethyldimethoxysilane and isopropyl tri (dioctyl phosphate oxy) titanate in a mass ratio of 2:2:0.5 are used as coupling agents, and epoxy resin emulsion, phenolic resin emulsion and aqueous polyurethane resin in a mass ratio of 1:1:1.5 are used as resin substrates, so that the resin substrates and reinforcing materials can be better combined, thereby improving the corrosion resistance of glass fibers, and the glass fiber cloth is immersed in microetching solution for 1.5 hours, with a loss rate of only 11.5%; when the content of the resin matrix in comparative example 1 is not within the protection scope of the application, the corrosion resistance of the glass fiber can be affected to a certain extent, the proportion of the coupling agent in comparative examples 2-3 is not within the protection scope of the application, and the proportion of the epoxy resin emulsion, the phenolic resin emulsion and the aqueous polyurethane resin in comparative examples 4-5 is not within the protection scope of the application, so that the corrosion resistance of the glass fiber can be reduced.
3. Tensile Strength test
The detection was carried out according to GB/T7689.5-2013 standard, and the detection results are shown in Table 3 below.
TABLE 3 Table 3
As can be seen from the detection data of the above table 3, the glass fiber cloth prepared in the embodiments 3-4 of the present application has higher mechanical properties, especially, in the embodiment 4, the epoxy resin emulsion, the phenolic resin emulsion and the aqueous polyurethane resin with the mass ratio of 1-1.2:1:1-1.5 are adopted as the resin matrix, and the mixture of 3-glycidoxypropyl trimethoxysilane, vinylmethyldimethoxy silane and isopropyl tri (dioctyl phosphate acyloxy) titanate with the mass ratio of 1-2:1-2:0.5 is adopted as the coupling agent, so that the wettability between the resin matrix and the reinforcing material is better, the interface bonding strength is higher, the mechanical properties of the glass fiber cloth are obviously improved, and the mechanical properties are obviously reduced by using only one coupling agent and changing the content or the ratio of the components in the embodiments 1-2.
It will be evident to those skilled in the art that the application is not limited to the details of the foregoing illustrative embodiments, and that the present application may be embodied in other specific forms without departing from the spirit or essential characteristics thereof.
The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (7)
1. A preparation method of glass fiber cloth is characterized in that: the method comprises the following steps:
(1) Crushing and melting glass raw materials to obtain glass liquid;
(2) Drawing the glass liquid in the step (1) at 1350-1400 ℃ and coating an impregnating compound to obtain glass precursor;
(3) Twisting the glass precursor obtained in the step (2) to obtain yarns, and casting the yarns into warps and wefts through a loom to obtain glass fiber cloth;
the impregnating compound comprises the following components in parts by weight: 8-12 parts of epoxy resin emulsion, 8-10 parts of phenolic resin emulsion, 10-15 parts of aqueous polyurethane resin, 0.5-1.5 parts of coupling agent, 0.1-0.5 part of coconut fatty acid amide, 5-10 parts of surfactant, 0.2-0.5 part of antistatic agent, 1-5 parts of pH regulator and the balance of water;
the coupling agent is a mixture of 3-glycidol ether oxypropyl trimethoxy silane, vinyl methyl dimethoxy silane and isopropyl tri (dioctyl acyloxy phosphate) titanate, and the mass ratio of the three is 1-2:1-2:0.5;
the mass ratio of the epoxy resin emulsion to the phenolic resin emulsion to the aqueous polyurethane resin is 1-1.2:1:1-1.5.
2. The method of manufacturing according to claim 1, characterized in that: the impregnating compound comprises the following components in parts by weight: 10-12 parts of epoxy resin emulsion, 8-10 parts of phenolic resin emulsion, 12-15 parts of aqueous polyurethane resin, 0.8-1.2 parts of coupling agent, 0.2-0.4 part of coconut fatty acid amide, 6-8 parts of surfactant, 0.3-0.4 part of antistatic agent, 2-3 parts of pH regulator and the balance of water.
3. The preparation method according to claim 2, characterized in that: the impregnating compound comprises the following components in parts by weight: 10 parts of epoxy resin emulsion, 10 parts of phenolic resin emulsion, 15 parts of aqueous polyurethane resin, 0.9 part of coupling agent, 0.4 part of coconut fatty acid amide, 8 parts of surfactant, 0.4 part of antistatic agent, 2 parts of pH regulator and the balance of water.
4. The method of manufacturing according to claim 1, characterized in that: the coupling agent is a mixture of 3-glycidol ether oxypropyl trimethoxy silane, vinyl methyl dimethoxy silane and isopropyl tri (dioctyl acyloxy phosphate) titanate, and the mass ratio of the three is 2:2:0.5.
5. The method of manufacturing according to claim 1, characterized in that: the mass ratio of the epoxy resin emulsion to the phenolic resin emulsion to the aqueous polyurethane resin is 1:1:1.5.
6. The method of manufacturing according to claim 1, characterized in that: the addition amount of the impregnating compound is 0.15-0.2% of the weight of the glass filaments.
7. The glass fiber cloth prepared by the preparation method according to any one of claims 1 to 6.
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| JP2004011030A (en) * | 2002-06-03 | 2004-01-15 | Mitsubishi Rayon Co Ltd | Chopped carbon fiber bundle, method for producing the same, aqueous sizing agent for chopped carbon fiber bundle and thermoplastic resin composition and molded product thereof |
| CN104562299A (en) * | 2014-12-29 | 2015-04-29 | 四川创越炭材料有限公司 | Preparation method for high-dispersity carbon fiber |
| CN113233790A (en) * | 2021-06-10 | 2021-08-10 | 山东玻纤集团股份有限公司 | Glass fiber impregnating compound for enhancing PMMA (polymethyl methacrylate), and preparation method and application thereof |
| CN113800785A (en) * | 2021-09-27 | 2021-12-17 | 巨石集团有限公司 | Impregnating compound for glass fiber, and preparation method, product and application thereof |
| CN114735951A (en) * | 2022-02-25 | 2022-07-12 | 陕西汇友友基新材料有限公司 | Preparation method of glass fiber impregnating compound special for mica cloth |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004011030A (en) * | 2002-06-03 | 2004-01-15 | Mitsubishi Rayon Co Ltd | Chopped carbon fiber bundle, method for producing the same, aqueous sizing agent for chopped carbon fiber bundle and thermoplastic resin composition and molded product thereof |
| CN104562299A (en) * | 2014-12-29 | 2015-04-29 | 四川创越炭材料有限公司 | Preparation method for high-dispersity carbon fiber |
| CN113233790A (en) * | 2021-06-10 | 2021-08-10 | 山东玻纤集团股份有限公司 | Glass fiber impregnating compound for enhancing PMMA (polymethyl methacrylate), and preparation method and application thereof |
| CN113800785A (en) * | 2021-09-27 | 2021-12-17 | 巨石集团有限公司 | Impregnating compound for glass fiber, and preparation method, product and application thereof |
| CN114735951A (en) * | 2022-02-25 | 2022-07-12 | 陕西汇友友基新材料有限公司 | Preparation method of glass fiber impregnating compound special for mica cloth |
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